Diversity can be added to your fitness routines and a wide range of workout options made available with the XMark 500 lb. Premium Rubber Coated Olympic Weight Set XM-3378-500S that includes a XM-3808 Olympic bar. 20 plate weights give you the means to advance your fitness to peak levels. Each plate weight comes with an easy to grip rubber surface that allows for easy transfer, and they will be held firmly in place thanks to the Olympic bar ís sturdy design and reliable spring clips that protect against sliding.